It's in the 7 minute promo on disc 3, titled "Promotion 2" (プロモーション 2). I believe (not certain) it's the trailer that was shown at TIFF, which Hajime reviewed here:
http://www.monsterzero.us/editorials/ed ... tentID=589
There was also a shot of Kenji Sahara in the EDF museum at the same time as Gigan was being awakend, which was left out of the final cut. Also a shot of someone (Ozaki?) looking through a metal grate, that I remember from several of the earlier promos, but don't remember being in the actual film (could be wrong), and an alternate angle (lower) of Godzilla's slide, where you can see part of the studio floor.